Here's why:
* Hairspray primarily holds the style, not the texture. It can prevent hair from falling flat or becoming frizzy, but it doesn't actually change the hair's natural tendency to curl or wave.
* Hairspray alone doesn't smooth down the hair cuticle. Straightening products are designed to do this, making the hair appear straighter and smoother.
* Humidity and hair texture play a role. Even with the best straightening products, humid weather or naturally curly or wavy hair can cause your hair to revert to its natural state over time.
Here's what you can do for longer-lasting straight hair:
1. Prepare your hair: Use a heat protectant spray to prevent damage from the straightening iron.
2. Section your hair: This allows you to straighten each section thoroughly without leaving any hair unstraightened.
3. Use a high-quality straightening iron: A good-quality iron will heat up evenly and have adjustable temperature settings, allowing you to find the best heat setting for your hair type.
4. Use a smoothing serum or cream: This helps to smooth down the hair cuticle and prevent frizz.
5. Finish with hairspray: This will help to hold your style in place and prevent frizz throughout the day.
Remember: If you find your hair reverting to its natural state quickly, consider trying a different straightening product or using a leave-in conditioner designed for straight hair. You may also want to invest in a hair dryer with a straightening nozzle.